Record-breaking heat indices — a combination of temperatures and humidity to determine how heat really feels to the body — ...

With an Extreme Heat Warning starting Saturday morning and a weekend full of events, heatstroke and heat exhaustion are real ...

A Midwest heat dome is driving high temperatures and high humidity that will push the Chicago heat index into the triple ...

Cook County and Chicago are under an Extreme Heat Warning starting Saturday morning, a Heat Advisory has been issued for the ...

Scorching temperatures and high humidity are a bad combo, especially when that's the forecast for three days in a row, making ...

Temperatures are expected to reach the mid 90s on Saturday and continue climbing throughout the weekend and into Monday, ...

Widespread 90s, even perhaps a few 100s, will bake much of the eastern two-thirds of the country in a dangerous heat wave.

Chicago's 1995 heat wave left 739 people dead over a five day-stretch. The National Weather Service says heat is the number ...

A heat wave is moving in, with over 100 million people from the Midwest to the Northeast on alert for life-threatening heat ...

Temperatures are expected to soar into the 90s on Saturday, with the heat index reaching 100-105 degrees on Saturday, Sunday ...

Four zip codes are most at-risk when it comes to dangerous heat waves and temperatures like those arriving this weekend in ...

Chicago’s average high for this time of year is about 82 degrees, but forecasts show highs of 94 to 98 degrees over the ...